CF Login Authentication Logic?

I am trying to created a login which allows for two types of users. One named 'Danbury' the other 'Field.'
Do far I created the an application page for the session variables, login and login process page.
The application functions when the user intiatlly opens the login page, then has access to the secured pages,
as defined by their session variable and userID.

If a user try to open a page without going through the login they receive an error message. I tried using CFLocation unsuccessfully. Please advise on this issue.

Thanks